package collection;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;

//泛型
public class GenericDemo {
    public static void main(String[] args) {
        Collection<Point> co=new ArrayList<>();
        co.add(new Point(1,2));
        co.add(new Point(3,4));
        co.add(new Point(5,6));
        co.add(new Point(7,8));
        co.add(new Point(9,10));
        Iterator<Point> iterator=co.iterator();
        while (iterator.hasNext()){
            Point p=iterator.next();
            System.out.println(p);
        }
        for (Point p: co){
            System.out.println(p);
        }













        /*
        Collection<String> c=new ArrayList<>();
        c.add("one");
        c.add("two");
        c.add("three");
        c.add("four");
        c.add("five");
        Iterator<String> it=c.iterator();
        while (it.hasNext()){
            String str=it.next();
            System.out.println(str);
        }
        for (String str:c){
            System.out.println(str);
        }

         */
    }

}
